Vacuum-walled container



.july 24, w23.

R. S. VVILE ET AL VACUUM WALLED CONTAINER Filed Dec. l2. 1919 fist ff U xwi Patent .italy 2e, EQZ.

VAGUUh-WAL CONTAINER.

Applleatenlled December la, 1919. serial No. 344,275, a

ToA all 'whom t may concern.'

Be it known that RAYMOND SAM Wma and SmNar n'r Goma', rectively, citizens of the United States, each residing at the borough of Manhattan, city of New York, in the county of New. York and State of N ew York, have invented certain new and useful improvements in VacuumfWa-lled Containers, of which the following is a specification.

This invention relates to vacuum walled containers such las are used for keepingy articles in the condition, as regards temperaradually given oli' if a high vacuum was rst used so that the vacuum was broken down.

One important object of the invention is to provide an improved form of vacuum Walled vessel so constructed that a high vacuum, with its. consequent improved heat insula tion, can be obtained and maintained.

A second ob'ection inherent in the usual forms of meta ic walled vessels of this description resides in the fact that the confronting surfaces of the ,inner and outer walls are dull or dark and thus the inner surface of the respective wall readily absorbs the heat from the space between the walls l and the outer surface of such wall gives of the heat to the surrounding atmosphere or the contents of the vessel, according to the dierence in temperature between such contents and the atmosphere.

A second important object of this invention is to provide an improved vessel of this class wherein revision will be made for greatly decreaslng the absorption and transmission of heat by the walls of such a vessel.

Another objection to the usual type of bottles of this class lies in the fact that occasioally the vacuum is broken through accident and the vessel becomes worthless.

A third A important object of. the invention 1s the provlslon of an improved vessel of this class havlng means to prevent total destruc- 'tion of the heat insulating function of the device. l

A fourth important object of the inven- -tion is the" provision of a cover, preferably in the form of a cup, which will have all of the heat insulating qualities and arrangement of the body of the vessel.

And still another important feature of our lnvention is the provision of a vessel or receptacle having a corrugated neck.

With the above and other as will be hereinafter apparent, the invention consists in neral in certain novel arrangements of etails and means to effect objects in view,

the lmprovements sought as hereinafter' fully described, illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like characters of reference indicate like parts in the severa] views. and Fig. 1 is a vertical section throu h a vacuum bottle as constructed in accor ance with this invention, the form shown employing the ordinary frictionally held stopper and a frictionally held cu Fig. 2 is a similar view otPsuch a bottle employing a screw held cup and corrugated F ig. 3 is a horizontal section through. a portion of such a bottle.

In the embodiment of the invention illustrated in the accompanying drawings there is shown a vacuum walled bottle. This is, however, merely typical of any desired form ofvsuch a vessel and it is not desired to re strict the invention to any particular form or shape of vessel. .When, therefore, the term bottle is usedI in-this specification it is to be understood as covering any form or sha e of vessel.

In t e embodiment illustrated the bottle is provided with the usual outer wall 10 and inner wall 11. In the form shown inted and `threaded a threads 17. Within the corrugated;l

' hieselgnhr 18, or diatomaceous- :L:

sew noch 16 4is au a stopper 18, the corrald gations thus providing heat insulatin aces as well as a larger path of trave through the metal so that heat cannot'pass into or from the bottle.

ln order to prevent oecluded gas from es'- caping from the walls into the spaee between them asis apt to be the case when suchwalls are lett of the ordinary metal employed, the inside of the outer Wall` and outside ot the inner wall of both bottle and cap are densel plated. with a metal, preferably nickel, Whic has praotically no occluding property and to `prevent heat from passing from the space @tween the walls into either wall the plat-k ing is hi hly polished and thus reflecting instead o absorbing the heat. Thus a'hig vacuum may he utilized and, exce t for accidents, intained and the heat insulating eeiency caused to he corres ondingly high. ln order to maintain ins ating eciency, even if the vacuum breaks down, it is preerred to place in the space between the walls of both vessel and cup a quantity of 25 in its which has great'heat resis- .natnral state,

. tivity.

v There has thus been provided an improved vl of the class descrimd and or the pur pose' sided.

16- hy suitable.)

nner

and outer occluding metallic Walls enclos ing a highly exhausted vacuum chamber, the confronting surfaces of said Walls being nickel plated and polished.

3. A. .vacuum Walled bottle having a vacuum Walled neck, the inner wall of said neck being circumterentially corated whereby to lenen the path of heat escapingkfrom the n ttle longitudinally of the nec 4l. A vacuum receptacle comprising a vacu chher having'walls formed of metal trea to prevent the `discharge o material from said Walls into the vacuous space in said` chamber, the vacuum-forming 'surfaces of said walls having a mirror lining.

lin testimony whereof we have aned our siatnres.

nan/torn sanear. Winn.. sinner nnnnnn'r sonar.. 

